Since I got CNG installed on my 2000 Civic, the back has lowered and my car base touches the road while going over speed breakers. It gets worse when 2 persons are sitting in the back seat. So I need to raise the car esp. from the back.

I have found that there are several options.

-Rubber Spacer.-Aluminum Spacer. -CNG Coil Spring (made from PC wire)

The spacer set will cost Rs 600, while Coil Spring set will cost Rs 1600. I dont know which is the best option.

I think coil spring i best option but use the one which is made of steel. Ideally it should be of slghtly thichker gauge as compared to that installed orignally. Moreover the number of turns are more hence it should be longer in length when uncompressed as compared to orignal. In 2001 I changed my Margallas rear spring coils after CNG installation for Rs.800 from Pindi sadar. They improved the ride a lot. Wait for othes to tell your experience abour rubber or aluminum spacrs.

Go for heavy duty springs as spacers will just make your car higher but destroy the ride of the car. Most factory fitted cars (done properly) have thicker gauge steel springs in the back instead, car will look better and will be returned to pre-cylinder height w/out loss of ride quality

Hello!@sinbad bhai...as i am using CNG(called) springs from 1.5 years...........they are very stiff made......don't think that its gonna gave u a very comfortable ride.......it spoils the rear comfort very badly......it cost me 1050/- 1.5year laters........but its useless...ride was made bit stiff and after that....i have to put spacers again bcz they are not long lasting at all......!so i prefer not to go with rubber spacers as they get pressed from load time to time...so unbalance rear....nor the CNG Called springs.....as its not tested for any balance tension..made of just hard spring wire.....!!so i prefre to go for Alimunium Spacers bcz they are long lasted.....how much u gonna higher...its up to you.....as they just increase the height...as Genuine Springs are there with tension rather than stiffer ones.....so CNG called Springs are only Hard Spring wire made coilovers....it was usually made in Punjab....!Thanxxx

Hello!if you don't wanna put spacers........i prefer not to also go with CNG called springs...try getting springs of car with got some more turns and greater in height that that of stock ones.....!CNG Coils overs are too stiff made that you can fell that when you are driving alone or with 2 ppl sitting in front and no one in rear....it makes car jump from rear like anything....!i prefer to get some springs which are greater in height than stock ones with some more turns.....try NISSAN or some TOYOTAS.........b/w for that...Visit SHERSHAH.......!b/w....u must 1st check for your spring sizes...bcz as i know...VTi got small diameter springs....so get it checked 1st..Thanxx

Yesterday, I got PC wire Coil Springs intalled in the back. Cost Rs 1600, took about 1 1/2 hours. The car is up and so far no problems. Will get better idea in the next days when I go over some car-breakers.

hey...m sorry to make it a dig, but i have been searching for quite a while now on PW and yet theres no solution. i m also luking to highten the car up a lil. @storm told me to get the stiffer springs but ppl have said here on threads that they spoil the ride comfort. the only rite solution which seems visible here is the coil with more turns. so, can someone please tell me whether it works or not. does it affect the ride comfort or stability or anything of that sort ? i have a platz for which i want this solution.thankx

I have installed new rear KYB shocks in my margalla sedan... And m using cultus cng rear springs with aluminium spacers of one inch... But still it used to sack with 3 person(+cylinder) sitting at back...